United States physiographic region

Main articles: Geography of the United States and Physiographic regions of the world

The list of continental United States Physiographic regions identifies the 8 regions, 25 provinces, and 85 sections.^[1] The system dates to Nevin Fenneman's paper Physiographic Subdivision of the United States, published in 1917.^[2] Fenneman expanded and presented his system more fully in two books, Physiography of western United States (1931),^[3] and Physiography of eastern United States (1938).^[4] In these works Fenneman described 25 provinces and 85 sections of the United States physiography.^[5]

1 Laurentian Upland
2 Atlantic Plain
3 Appalachian Highlands
4 Interior Plains
5 Interior Highlands
6 Rocky Mountain System
7 Intermontane Plateaus
8 Pacific Mountains System
9 References

Laurentian Upland

1. Superior Upland

Atlantic Plain

2. Continental Shelf (not on map)

3. Coastal Plain

3a. Embayed section

3b. Sea Island section

3c. Floridian section

3d. East Gulf Coastal Plain

3e. Mississippi Alluvial Plain

3f. West Gulf Coastal Plain

Appalachian Highlands

4. Piedmont province

4a. Piedmont Upland

4b. Piedmont Lowlands

5. Blue Ridge province

5a. Northern section

5b. Southern section

6. Valley and Ridge province

6a. Tennessee section

6b. Middle section

6c. Hudson Valley

7. St. Lawrence Valley

7a. Champlain section

7b. Northern section (not on map)

8. Appalachian Plateaus province

8a. Mohawk section

8b. Catskill section

8c. Southern New York section

8d. Allegheny Plateau section

8e. Kanawha section

8f. Cumberland Plateau section

8g. Cumberland Mountain section

9. New England Province

9a. Seaboard Lowland section

9b. New England Upland section

9c. White Mountain section

9d. Green Mountain section

9e. Taconic section

10. Adirondack province

Interior Plains

11 Interior Low Plateaus	11a Highland Rim · 11b Lexington Plain · 11c Nashville Basin

12 Central Lowland	12a Eastern Lake · 12b Western Lake · 12c Wisconsin Driftless · 12d Till Plains · 12e Dissected Till Plains · 12f Osage Plains

13 Great Plains	13a/b MO Plateau (glaciated/unglaciated) · 13c Black Hills · 13d High Plains · 13e Plains Border · 13f CO Piedmont · 13g Raton · 13h Pecos Valley · 13i Edwards Plateau · 13j Central TX

Interior Highlands

14 Ozark Plateaus	14a Springfield-Salem plateaus · 14b Boston Mountains

15 Ouachita province	15a Arkansas Valley · 15b Ouachita Mountains

Rocky Mountain System

16 Southern Rocky Mountains	·

17 Wyoming Basin	·

18 Middle Rocky Mountains	·

19 Northern Rocky Mountains	·

Intermontane Plateaus

20. Columbia Plateau

20a. Walla Walla Plateau

20b. Blue Mountain section

20c. Payette section

20d. Snake River Plain

20e. Harney section

21. Colorado Plateaus

21a. High Plateaus of Utah

21b. Uinta Basin

21c. Canyon Lands

21d. Navajo section

21e. Grand Canyon section

21f. Datil section

22. Basin and Range province

22a. Great Basin section

22b. Sonoran Desert

22c. Salton Trough

22d. Mexican Highland

22e. Sacramento section

Pacific Mountains System

Pacific Mountain System

region	province	section
Pacific Mountains	23. Cascade-Sierra Mountains	23a. Northern Cascade Mountains
		23b. Middle Cascade Mountains
		23c. Southern Cascade Mountains
		23d. Sierra Nevada
	24. Pacific Border province	24a. Puget Trough
		24b. Olympic Mountains
		24c. Oregon Coast Range
		24d. Klamath Mountains
		24e. California Trough
		24f. California Coast Ranges
		24g. "Los Angeles Ranges—(Transverse Ranges)"
	25. Lower California province—(Peninsular Ranges)

References

^ "Physiographic Regions". United States Geological Survey. 2003-04-17. http://tapestry.usgs.gov/physiogr/physio.html. Retrieved 2008-01-30.
^ Fenneman, Nevin M. (January 1917). "Physiographic Subdivision of the United States". Proceedings of the National Academy of Sciences of the United States of America 3 (1): 17–22. OCLC 43473694. PMC 1091163. PMID 16586678. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1091163. Retrieved 5 October 2010.
^ Fenneman, Nevin Melancthon (1931). Physiography of western United States. McGraw-Hill. OCLC 487636.
^ Fenneman, Nevin Melancthon (1938). Physiography of eastern United States. McGraw-Hill. OCLC 487628.
^ "Automated IFSAR Terrain Analysis System". Defense Advanced Research Projects Agency (DOD), Information Sciences Office. 31 August 2001. http://www.agc.army.mil/publications/ifsar/lafinal08_01/cover/cover_frame.htm. Retrieved 5 October 2010.

Geographic regions of the United States

Political

Units	U.S. state · District of Columbia · Insular area · Minor Outlying Island · Maritime territory

Time zones	Hawaii-Aleutian · Alaska · Pacific · Mountain · Central · Eastern

Census	West (Pacific · Mountain) · Midwest (E N Central · W N Central) · Northeast (New England · Middle Atlantic) · South (S Atlantic · E S Central · W S Central)

Federal	X (AK–ID–OR–WA) · IX (AZ–CA–HI–NV) · VIII (CO–MT–ND–SD–UT–WY) · VII (IA–KS–MO–NE) · VI (AR–LA–NM–OK–TX) · V (Great Lakes) · IV (AL–FL–GA–KY–MS–NC–SC–TN) · III (DE–DC–MD–PA–VA–WV) · II (NY–NJ) · I (New England)

Judicial circuits	9^th (Pacific) · 10^th (W Central) · 5^th (TX–LA–MS) · 8^th (N Central) · 7^th (WI–IL–IN) · 6^th (MI–OH–KY–TN) · 11^th (AL–GA–FL) · 4^th (WV–VA–MD–NC–SC) · 3^rd (PA–NJ–DE) · 2^nd (NY–VT–CT) · 1^st (ME–MA–NH–RI)

Physical

Physiographic	Pacific Mountain · Intermontane Plateaus · Rocky Mountain · Superior Upland · Interior Plains · Interior Highlands · Appalachian · Atlantic Plain

Coastal	Arctic · West · Great Lakes · Gulf · East

Historical

Ac/cessions	13 Colonies · Louisiana Purchase · Gadsden Purchase · Texas Annexation · Oregon Treaty · Mexican Cession · Alaska Purchase · Newlands Resolution

Civil War	Theaters (Pacific · Western · Trans-Mississippi · Lower Seaboard · Eastern) · Union (Border states) · Confederacy (Old South · Dixie · Slave states)

Other

Appalachia · Central · Four Corners · Great Plains · High Plains · Intermountain · Interior · Northwest Territory · South Central · Southern (Deep · New · Upland) · Southeast · Southwest